JP5124386B2 - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

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Publication number
JP5124386B2
JP5124386B2 JP2008205567A JP2008205567A JP5124386B2 JP 5124386 B2 JP5124386 B2 JP 5124386B2 JP 2008205567 A JP2008205567 A JP 2008205567A JP 2008205567 A JP2008205567 A JP 2008205567A JP 5124386 B2 JP5124386 B2 JP 5124386B2
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light
light source
emitted
lamp
reflector
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JP2010040485A (en
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浩哉 小泉
賢治 延原
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/10—Position lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/55—Daytime running lights [DRL]

Description

本発明は車輌用灯具に関する。詳しくは、同一の光源から出射された光を導光体で導くと共にリフレクターで反射させてコストの低減を図りつつ所望の配光パターンを確保する技術分野に関する。   The present invention relates to a vehicular lamp. Specifically, the present invention relates to a technical field in which a light emitted from the same light source is guided by a light guide and reflected by a reflector to secure a desired light distribution pattern while reducing costs.

車輌用灯具には、例えば、アウターカバーとランプハウジングによって構成された灯具外筐の内部に、光源、リフレクター及び導光体が配置されたタイプがある（例えば、特許文献１参照）。   As a vehicle lamp, for example, there is a type in which a light source, a reflector, and a light guide are arranged inside a lamp outer casing constituted by an outer cover and a lamp housing (see, for example, Patent Document 1).

特許文献１に記載された車輌用灯具にあっては、灯具外筐の内部に第１の光源と第２の光源とリフレクターと導光体が配置されている。第１の光源から出射された光はリフレクターで反射され、アウターカバーを透過されて外部へ照射される。第２の光源から出射された光は導光体の入射面から入射され内部を導光されて出射面から出射され、アウターカバーを透過されて外部へ照射される。   In the vehicular lamp described in Patent Document 1, a first light source, a second light source, a reflector, and a light guide are arranged inside a lamp outer casing. The light emitted from the first light source is reflected by the reflector, passes through the outer cover, and is irradiated to the outside. The light emitted from the second light source enters from the incident surface of the light guide, is guided through the interior, is emitted from the exit surface, passes through the outer cover, and is irradiated to the outside.

このように２種類の光源を用いることにより、各光源から出射される光の制御により所望の配光パターンを形成することが可能となる。   By using two types of light sources in this way, it is possible to form a desired light distribution pattern by controlling the light emitted from each light source.

特開２００６−２３６５８８号公報JP 2006-236588 A

ところが、特許文献１に記載された従来の車輌用灯具にあっては、リフレクターで反射される光の出射専用の第１の光源と、導光体の内部で導光される光の出射専用の第２の光源の２種類の光源を有しているため、光源の数が多く、その分、製造コストの高騰を来たすと言う問題がある。   However, in the conventional vehicular lamp described in Patent Document 1, the first light source dedicated to emitting light reflected by the reflector and the dedicated light emitting light guided inside the light guide are provided. Since there are two types of light sources, the second light source, there is a problem that the number of light sources is large and the manufacturing cost increases accordingly.

そこで、本発明車輌用灯具は、上記した問題点を克服し、コストの低減を図りつつ所望の配光パターンを確保することを課題とする。   Therefore, an object of the vehicular lamp of the present invention is to overcome the above-described problems and secure a desired light distribution pattern while reducing costs.

車輌用灯具は、上記した課題を解決するために、ランプハウジングとアウターカバーによって形成された灯具外筐の内部に光源とリフレクターと導光体が配置され、前記導光体は前記光源から出射された光の一部を入射する入射面と該入射面から入射され内部で導光された光を出射する出射面とを有し、前記リフレクターは前記光源から出射された光の別の一部を反射する反射面を有し、前記リフレクターの反射面で反射された光が前記導光体を透過されて出射されるようにし、前記導光体を前後方向に対して傾斜する方向へ延びる形状に形成し、前記導光体に本体部と該本体部の少なくとも一方の側縁に連続し本体部に対して屈曲された屈曲部とを設け、前記灯具外筐の内部に光反射体を配置し、前記灯具外筐の内部に前記光反射体へ向けて光を出射する光源体を配置し、前記光源体から出射され前記光反射体で反射された光が前記導光体を透過されて出射されるようにし、前記光源と前記光源体とが種類を異にする別個の光源として構成されるとともに、前記灯具外筐の内部の異なる箇所に配置されたものである。 In order to solve the above-described problems, a vehicular lamp includes a light source, a reflector, and a light guide disposed inside a lamp outer casing formed by a lamp housing and an outer cover, and the light guide is emitted from the light source. An incident surface on which a part of the incident light is incident and an exit surface that emits the light that is incident from the incident surface and guided inside, and the reflector receives another part of the light emitted from the light source. It has a reflecting surface that reflects, and the light reflected by the reflecting surface of the reflector is transmitted through the light guide and emitted, and the light guide is extended in a direction inclined with respect to the front-rear direction. Forming a main body part and a bent part that is continuous with at least one side edge of the main body part and bent with respect to the main body part, and disposing a light reflector inside the lamp outer casing. , Toward the light reflector inside the lamp housing A light source body that emits light is arranged so that light emitted from the light source body and reflected by the light reflector is transmitted through the light guide body, and the light source and the light source body are of different types. The light source is configured as a different and distinct light source, and is disposed at a different location inside the lamp casing .

従って、車輌用灯具にあっては、光源から出射された光が導光体で導光されて出射されると共にリフレクターで反射されて導光体から出射される。   Therefore, in the vehicular lamp, the light emitted from the light source is guided by the light guide and emitted, reflected by the reflector and emitted from the light guide.

本発明車輌用灯具は、ランプハウジングとアウターカバーによって形成された灯具外筐の内部に光源とリフレクターと導光体が配置された車輌用灯具であって、前記導光体は前記光源から出射された光の一部を入射する入射面と該入射面から入射され内部で導光された光を出射する出射面とを有し、前記リフレクターは前記光源から出射された光の別の一部を反射する反射面を有し、前記リフレクターの反射面で反射された光が前記導光体を透過されて出射されるようにし、前記導光体を前後方向に対して傾斜する方向へ延びる形状に形成し、前記導光体に本体部と該本体部の少なくとも一方の側縁に連続し本体部に対して屈曲された屈曲部とを設け、前記灯具外筐の内部に光反射体を配置し、前記灯具外筐の内部に前記光反射体へ向けて光を出射する光源体を配置し、前記光源体から出射され前記光反射体で反射された光が前記導光体を透過されて出射されるようにし、前記光源と前記光源体とが種類を異にする別個の光源として構成されるとともに、前記灯具外筐の内部の異なる箇所に配置されたことを特徴とする。 The vehicular lamp according to the present invention is a vehicular lamp in which a light source, a reflector, and a light guide are arranged inside a lamp outer casing formed by a lamp housing and an outer cover, and the light guide is emitted from the light source. An incident surface on which a part of the incident light is incident and an exit surface that emits the light that is incident from the incident surface and guided inside, and the reflector receives another part of the light emitted from the light source. It has a reflecting surface that reflects, and the light reflected by the reflecting surface of the reflector is transmitted through the light guide and emitted, and the light guide is extended in a direction inclined with respect to the front-rear direction. Forming a main body part and a bent part that is continuous with at least one side edge of the main body part and bent with respect to the main body part, and disposing a light reflector inside the lamp outer casing. Light toward the light reflector inside the lamp outer casing A light source body that emits light is disposed so that light emitted from the light source body and reflected by the light reflector is transmitted through the light guide and emitted, and the light source and the light source body are of different types. The light source is configured as a separate light source, and is disposed at a different location inside the lamp outer casing .

従って、光源の数を少なくして製造コストの低減を図りつつ所望の配光パターンを確保することができる。   Therefore, it is possible to secure a desired light distribution pattern while reducing the number of light sources and reducing the manufacturing cost.

そして、前記導光体を前後方向に対して傾斜する方向へ延びる形状に形成したので、車輌用灯具の前後方向における長さを短くすることができ、車輌用灯具の全長の短縮化を図ることができる。 And since the said light guide was formed in the shape extended in the direction which inclines with respect to the front-back direction, the length in the front-back direction of a vehicle lamp can be shortened, and shortening of the full length of a vehicle lamp is aimed at. Can do.

そして、前記導光体に本体部と該本体部の少なくとも一方の側縁に連続し本体部に対して屈曲された屈曲部とを設けたので、光源から出射された光を屈曲部が向く方向へ向けて出射することができ、配光性能の向上を図ることができる。 Since the light guide is provided with a main body and a bent portion that is continuous with at least one side edge of the main body and is bent with respect to the main body, the direction in which the bent portion faces the light emitted from the light source The light distribution performance can be improved.

そして、前記灯具外筐の内部に光反射体を配置し、前記灯具外筐の内部に前記光反射体へ向けて光を出射する光源体を配置し、前記光源体から出射され前記光反射体で反射された光が前記導光体を透過されて出射されるようにし、前記光源と前記光源体とが種類を異にする別個の光源として構成されるとともに、前記灯具外筐の内部の異なる箇所に配置されたので、光源から出射された光と光源体から出射された光とを各別に制御して、車輌用灯具の機能性の向上を図ることができる。 A light reflector is disposed inside the lamp outer casing, a light source body that emits light toward the light reflector is disposed inside the lamp outer casing, and the light reflector is emitted from the light source body. The light reflected by the light is transmitted through the light guide and emitted, and the light source and the light source are configured as separate light sources of different types, and are different in the interior of the lamp casing. because disposed at a position, a light emitted from the light and light source emitted from the light source is controlled to individually, it is possible to improve the functionality of the vehicle lamp.

以下に、本発明車輌用灯具を実施するための最良の形態について添付図面を参照して説明する。   The best mode for carrying out the vehicular lamp of the present invention will be described below with reference to the accompanying drawings.

車輌用灯具１は、図１に示すように、前方に開口された凹部を有するランプハウジング２と該ランプハウジング２の開口面を閉塞するアウターカバー３とを備えている。ランプハウジング２とアウターカバー３によって灯具外筐４が構成され、該灯具外筐４の内部空間は灯室５として形成されている。   As shown in FIG. 1, the vehicular lamp 1 includes a lamp housing 2 having a recess opened forward, and an outer cover 3 that closes the opening surface of the lamp housing 2. The lamp housing 2 and the outer cover 3 constitute a lamp outer casing 4, and the inner space of the lamp outer casing 4 is formed as a lamp chamber 5.

灯室５の下方には基台６が配置されている。基台６の後端部には複数の光源体７、７、・・・が搭載されている。光源体７、７、・・・としては、例えば、発光ダイオード（Light Emitting Diode）が用いられている。光源体７、７、・・・は、例えば、六つが設けられ、二つずつが前後で隣接し、左右に離隔して配置されている（図１及び図２参照）。   A base 6 is disposed below the lamp chamber 5. A plurality of light source bodies 7, 7,... Are mounted on the rear end portion of the base 6. As the light source bodies 7, 7,..., For example, light emitting diodes are used. The light source bodies 7, 7,... Are provided, for example, and two light source bodies 7, 7,...

基台６の前端部には左右に離隔して光源８、８が搭載されている（図２及び図３参照）。光源８、８としては、例えば、発光ダイオード（Light Emitting Diode）が用いられている。光源８、８は、光源体７、７、・・・より左右方向において外側に配置されている。   Light sources 8 and 8 are mounted on the front end portion of the base 6 so as to be separated from each other on the left and right sides (see FIGS. 2 and 3). As the light sources 8, 8, for example, light emitting diodes are used. The light sources 8, 8 are arranged outside the light source bodies 7, 7,.

灯室５の内部にはベース体９が光源体７、７、・・・及び基台６を覆うようにして配置されている（図１及び図３参照）。ベース体９は、上下方向を向く基壁１０と、該基壁１０の外周寄りの位置から下方へ突出された周壁１１と、基壁１０の前端寄りの位置から下方へ突出されたリフレクター１２、１２とを有している。リフレクター１２、１２は左右に並ぶようにして設けられ、前面がそれぞれ反射面１２ａ、１２ａとして形成されている。   A base body 9 is arranged inside the lamp chamber 5 so as to cover the light source bodies 7, 7,... And the base 6 (see FIGS. 1 and 3). The base body 9 includes a base wall 10 that faces in the vertical direction, a peripheral wall 11 that protrudes downward from a position near the outer periphery of the base wall 10, and a reflector 12 that protrudes downward from a position near the front end of the base wall 10, 12. The reflectors 12 and 12 are provided so as to be lined up on the left and right, and the front surfaces are formed as reflecting surfaces 12a and 12a, respectively.

ベース体９の基壁１０の後端寄りの位置には上下に貫通された横長の取付孔１０ａが形成されている（図１参照）。取付孔１０ａは光源体７、７、・・・の上側に位置されている。   A horizontally long mounting hole 10a penetrating vertically is formed at a position near the rear end of the base wall 10 of the base body 9 (see FIG. 1). The mounting hole 10a is located above the light source bodies 7, 7,.

ベース体９の基壁１０には取付孔１０ａを閉塞するカバーレンズ１３が取り付けられている。カバーレンズ１３の下面には所定のレンズステップ１３ａが形成されている。   A cover lens 13 that closes the mounting hole 10 a is attached to the base wall 10 of the base body 9. A predetermined lens step 13 a is formed on the lower surface of the cover lens 13.

灯室５には光学体１４が配置されている（図１乃至図４参照）。光学体１４は垂直断面で略上方へ凸の円弧状に形成されている。光学体１４は導光体１５と光反射体１６が前後で結合されて成る。   An optical body 14 is disposed in the lamp chamber 5 (see FIGS. 1 to 4). The optical body 14 is formed in an arc shape that is convex upward in a vertical section. The optical body 14 is formed by coupling a light guide 15 and a light reflector 16 at the front and rear.

導光体１５は、図４に示すように、外側へ凸の略矩形の緩やかな曲面状に形成された本体部１７と、該本体部１７の上端から略水平方向へ突出された枠部１８と、本体部１７の両側縁にそれぞれ連続し本体部１７に対して屈曲された屈曲部１９、１９とから成る。導光体１５は前後方向に対して傾斜する方向へ延びるように形成されている。   As shown in FIG. 4, the light guide 15 includes a main body portion 17 that is formed in a substantially rectangular and gently curved shape that protrudes outward, and a frame portion 18 that protrudes from the upper end of the main body portion 17 in a substantially horizontal direction. And bent portions 19 and 19 which are respectively continuous with both side edges of the main body portion 17 and bent with respect to the main body portion 17. The light guide 15 is formed to extend in a direction inclined with respect to the front-rear direction.

枠部１８は本体部１７側に開口されたコ字状に形成されている。   The frame portion 18 is formed in a U-shape opened to the main body portion 17 side.

屈曲部１９、１９には、例えば、その全面にシボ加工が施されている。屈曲部１９、１９の下端寄りの位置には、それぞれ略下方を向く入射面１９ａ、１９ａが形成されている（図３及び図５参照）。屈曲部１９、１９の表面は出射面１９ｂ、１９ｂとして形成されている。   For example, the bent portions 19 and 19 are subjected to texturing on the entire surface. Incident surfaces 19a and 19a facing substantially downward are formed at positions near the lower ends of the bent portions 19 and 19, respectively (see FIGS. 3 and 5). The surfaces of the bent portions 19 and 19 are formed as emission surfaces 19b and 19b.

光源８、８はそれぞれ入射面１９ａ、１９ａの近傍に位置されている。   The light sources 8 and 8 are located in the vicinity of the incident surfaces 19a and 19a, respectively.

光反射体１６は、図１及び図４に示すように、上端が導光体１５の本体部１７の上端に結合され、外側へ凸の略矩形の緩やかな曲面状に形成されている。光反射体１６は前後方向に対して傾斜する方向へ延びるように形成されている。光反射体１６の内面には反射処理、例えば、アルミ蒸着が施され、該アルミ蒸着が施された部分が光反射面１６ａとして形成されている。尚、アルミ蒸着等の反射面１６ａは光反射体１６の内面に限られることはなく、例えば、光反射体１６の外面に施されていてもよい。   As shown in FIGS. 1 and 4, the light reflector 16 has an upper end coupled to an upper end of the main body 17 of the light guide 15, and is formed in a substantially rectangular, gently curved surface convex outward. The light reflector 16 is formed to extend in a direction inclined with respect to the front-rear direction. The inner surface of the light reflector 16 is subjected to reflection treatment, for example, aluminum vapor deposition, and a portion where the aluminum vapor deposition is performed is formed as a light reflection surface 16a. The reflective surface 16a such as aluminum vapor deposition is not limited to the inner surface of the light reflector 16, and may be provided on the outer surface of the light reflector 16, for example.

光学体１４は導光体１５の下端部が、例えば、接着等の適宜の手段によってベース体９の基壁１０における前端寄りの位置に取り付けられている。   The optical body 14 has a lower end portion of the light guide 15 attached to a position near the front end of the base wall 10 of the base body 9 by an appropriate means such as adhesion.

以上のように構成された車輌用灯具１において、それぞれ光源体７、７、・・・から光が出射されると、図６に示すように、出射された光はそれぞれカバーレンズ１３を透過されて光反射体１６の光反射面１６ａへ向かう。このとき光源体７、７、・・・から出射された光は、それぞれカバーレンズ１３のレンズステップ１３ａによって屈折又は拡散されて光反射面１６ａへ向かう。   In the vehicular lamp 1 configured as described above, when light is emitted from the light source bodies 7, 7,..., The emitted light is transmitted through the cover lens 13 as shown in FIG. To the light reflecting surface 16a of the light reflector 16. At this time, the light emitted from the light source bodies 7, 7,... Is refracted or diffused by the lens step 13a of the cover lens 13 and travels toward the light reflecting surface 16a.

光反射体１６の光反射面１６ａへ向かった光はそれぞれ該光反射面１６ａで反射され導光体１５を透過されアウターカバー３を介して外部へ照射される。   The light traveling toward the light reflecting surface 16 a of the light reflector 16 is reflected by the light reflecting surface 16 a, passes through the light guide 15, and is irradiated to the outside through the outer cover 3.

一方、それぞれ光源８、８から光が出射されると、図５に示すように、出射された光の一部がそれぞれリフレクター１２、１２の反射面１２ａ、１２ａへ向かい、該反射面１２ａ、１２ａで反射されアウターカバー３を介して外部へ照射される。   On the other hand, when light is emitted from the light sources 8 and 8, respectively, as shown in FIG. 5, a part of the emitted light is directed to the reflection surfaces 12a and 12a of the reflectors 12 and 12, respectively, and the reflection surfaces 12a and 12a. And is irradiated to the outside through the outer cover 3.

同時に、それぞれ光源８、８から光が出射されたときには、出射された光の別の一部がそれぞれ導光体１５の屈曲部１９、１９に形成された入射面１９ａ、１９ａから入射され、導光体１５の内部で導光されて出射面１９ｂ、１９ｂから出射され、アウターカバー３を介して外部へ照射される。   At the same time, when light is emitted from the light sources 8 and 8, respectively, another part of the emitted light is incident from the incident surfaces 19a and 19a formed on the bent portions 19 and 19 of the light guide 15, respectively. The light is guided inside the light body 15 and emitted from the emission surfaces 19 b and 19 b, and is irradiated to the outside through the outer cover 3.

尚、光源８、８から光が出射されたときには、出射された光が導光体１５の本体部１７に入射され得るため、該本体部１７に入射された光は本体部１７の内部を導光又は本体部１７を透過されて本体部１７の表面から出射され、アウターカバー３を介して外部へ照射される。   When light is emitted from the light sources 8, 8, the emitted light can be incident on the main body 17 of the light guide 15, so that the light incident on the main body 17 is guided inside the main body 17. Light or light is transmitted through the main body 17 and emitted from the surface of the main body 17, and is irradiated to the outside through the outer cover 3.

以上に記載した通り、車輌用灯具１にあっては、光源８、８から出射された光の一部を導光体１５の入射面１９ａ、１９ａから入射させて導光させ出射面１９ｂ、１９ｂから出射させると共に光源８、８から出射された光の別の一部をリフレクター１２、１２で反射させて出射させるようにしている。   As described above, in the vehicular lamp 1, a part of the light emitted from the light sources 8, 8 is incident from the incident surfaces 19 a, 19 a of the light guide 15 to be guided, and the outgoing surfaces 19 b, 19 b are guided. And another part of the light emitted from the light sources 8 and 8 is reflected by the reflectors 12 and 12 to be emitted.

従って、光源の数を少なくして製造コストの低減を図りつつ所望の配光パターンを確保することができる。   Therefore, it is possible to secure a desired light distribution pattern while reducing the number of light sources and reducing the manufacturing cost.

また、導光体１５を前後方向に対して傾斜する方向へ延びる形状に形成しているため、車輌用灯具１の奥行き方向（前後方向）における長さを短くすることができ、車輌用灯具１の全長の短縮化を図ることができる。   Further, since the light guide 15 is formed in a shape extending in a direction inclined with respect to the front-rear direction, the length of the vehicular lamp 1 in the depth direction (front-rear direction) can be shortened, and the vehicular lamp 1 The overall length of the can be shortened.

さらに、導光体１５の両側部にそれぞれ本体部１７に対して屈曲された屈曲部１９、１９を設けているため、光源８、８から出射された光を側方へ向けて出射することができ、配光性能の向上を図ることができる。   Further, since the bent portions 19 and 19 that are bent with respect to the main body portion 17 are provided on both side portions of the light guide 15, the light emitted from the light sources 8 and 8 can be emitted sideways. And light distribution performance can be improved.

また、本体部１７に対して屈曲された屈曲部１９、１９を設けることにより、導光体１５の剛性を高くすることができる。   Further, by providing the bent portions 19 and 19 that are bent with respect to the main body portion 17, the rigidity of the light guide 15 can be increased.

尚、上記には、本体部１７の両側部にそれぞれ屈曲部１９、１９を設けた例を示しているが、屈曲部１９は本体部１７の一方の側部にのみ設けられていてもよい。この場合には、光源８が一つのみ設けられていて該光源８が屈曲部１９の入射面１９ａの近傍に配置されていればよい。   In addition, although the example which provided the bending parts 19 and 19 in the both sides of the main-body part 17 was shown above, the bending part 19 may be provided only in the one side part of the main-body part 17, respectively. In this case, only one light source 8 is provided, and the light source 8 may be disposed in the vicinity of the incident surface 19 a of the bent portion 19.

また、車輌用灯具１にあっては、上記したように、灯具外筐４の内部に光反射体１６と光源体７、７、・・・を配置し、該光源体７、７、・・・から出射された光が光反射体１６で反射され出射されるようにしている。   In the vehicular lamp 1, as described above, the light reflector 16 and the light source bodies 7, 7,... Are arranged inside the lamp outer casing 4, and the light source bodies 7, 7,. The light emitted from is reflected by the light reflector 16 and emitted.

従って、光源８、８から出射された光と光源体７、７、・・・から出射された光とを各別に制御して、一つの車輌用灯具１を機能の異なる二種類の灯具として用いることができる。また、機能の異なる二種類の灯具として用いることにより、配置スペースの向上を図ることができる。   Therefore, the light emitted from the light sources 8, 8 and the light emitted from the light source bodies 7, 7,... Are controlled separately to use one vehicular lamp 1 as two types of lamps having different functions. be able to. Further, the use of two kinds of lamps having different functions can improve the arrangement space.

尚、上記のように、車輌用灯具１を機能の異なる二種類の灯具として用いる態様としては、例えば、光源体７、７、・・・から光が出射された場合に、車輌用灯具１を夜間以外の標識灯として機能する所謂デイタイムランニングランプ用の灯具として用い、光源８、８から光が出射された場合に、車輌用灯具１を夜間の標識灯として機能する所謂クリアランスランプ（車幅灯）用の灯具として用いる態様がある。   As described above, as an aspect in which the vehicular lamp 1 is used as two types of lamps having different functions, for example, when light is emitted from the light source bodies 7, 7,. A so-called clearance lamp (vehicle width) is used as a lamp for a so-called daytime running lamp that functions as a sign lamp other than the night, and when the light is emitted from the light sources 8, 8, the vehicle lamp 1 functions as a sign lamp at night. There is an aspect used as a lamp for a lamp.

上記した発明を実施するための最良の形態において示した各部の形状及び構造は、何れも本発明を実施するに際して行う具体化のほんの一例を示したものにすぎず、これらによって本発明の技術的範囲が限定的に解釈されることがあってはならないものである。   The shapes and structures of the respective parts shown in the best mode for carrying out the invention described above are only examples of the embodiments performed in carrying out the present invention, and these are the technical aspects of the present invention. The range should not be interpreted in a limited way.

図２乃至図６と共に本発明車輌用灯具の最良の形態を示すものであり、本図は、光源体を示す位置における縦断面図である。FIG. 2 to FIG. 6 show the best mode of the vehicular lamp of the present invention, and this figure is a longitudinal sectional view at a position showing a light source body. 光学体及びベース体等を示す正面図である。It is a front view which shows an optical body, a base body, etc. 光源を示す位置における拡大縦断面図である。It is an expanded longitudinal cross-sectional view in the position which shows a light source. 光学体及びベース体を示す斜視図である。It is a perspective view which shows an optical body and a base body. 光源から出射された光の経路を示す概念図である。It is a conceptual diagram which shows the path | route of the light radiate | emitted from the light source. 光源体から出射された光の経路を示す概念図である。It is a conceptual diagram which shows the path | route of the light radiate | emitted from the light source body.

符号の説明Explanation of symbols

１…車輌用灯具、２…ランプハウジング、３…アウターカバー、４…灯具外筐、７…光源体、８…光源、１２…リフレクター、１２ａ…反射面、１５…導光体、１６…光反射体、１７…本体部、１９…屈曲部、１９ａ…入射面、１９ｂ…出射面   DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp, 2 ... Lamp housing, 3 ... Outer cover, 4 ... Lamp outer casing, 7 ... Light source body, 8 ... Light source, 12 ... Reflector, 12a ... Reflecting surface, 15 ... Light guide, 16 ... Light reflection Body, 17 ... main body, 19 ... bent portion, 19a ... entrance surface, 19b ... exit surface

Claims (1)

ランプハウジングとアウターカバーによって形成された灯具外筐の内部に光源とリフレクターと導光体が配置された車輌用灯具であって、
前記導光体は前記光源から出射された光の一部を入射する入射面と該入射面から入射され内部で導光された光を出射する出射面とを有し、
前記リフレクターは前記光源から出射された光の別の一部を反射する反射面を有し、
前記リフレクターの反射面で反射された光が前記導光体を透過されて出射されるようにし、
前記導光体を前後方向に対して傾斜する方向へ延びる形状に形成し、
前記導光体に本体部と該本体部の少なくとも一方の側縁に連続し本体部に対して屈曲された屈曲部とを設け、
前記灯具外筐の内部に光反射体を配置し、
前記灯具外筐の内部に前記光反射体へ向けて光を出射する光源体を配置し、
前記光源体から出射され前記光反射体で反射された光が前記導光体を透過されて出射されるようにし、
前記光源と前記光源体とが種類を異にする別個の光源として構成されるとともに、前記灯具外筐の内部の異なる箇所に配置された
ことを特徴とする車輌用灯具。 A vehicle lamp in which a light source, a reflector, and a light guide are arranged inside a lamp housing formed by a lamp housing and an outer cover,
The light guide has an incident surface on which a part of the light emitted from the light source is incident and an emission surface that emits light incident on the incident surface and guided inside.
The reflector has a reflecting surface that reflects another part of the light emitted from the light source,
The light reflected by the reflecting surface of the reflector is transmitted through the light guide and emitted .
Forming the light guide in a shape extending in a direction inclined relative to the front-rear direction
The light guide is provided with a main body and a bent portion that is continuous with at least one side edge of the main body and is bent with respect to the main body.
A light reflector is disposed inside the lamp outer casing,
A light source body that emits light toward the light reflector is disposed inside the lamp outer casing,
The light emitted from the light source body and reflected by the light reflector is transmitted through the light guide and emitted.
A vehicular lamp characterized in that the light source and the light source body are configured as separate light sources of different types, and are disposed at different locations inside the lamp outer casing .
JP2008205567A 2008-08-08 2008-08-08 Vehicle lamp Expired - Fee Related JP5124386B2 (en)

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JP6227345B2 (en) * 2013-09-25 2017-11-08 スタンレー電気株式会社 Vehicle lighting
CN110594691A (en) * 2018-06-12 2019-12-20 法雷奥市光（中国）车灯有限公司 Lighting or signalling device and motor vehicle
CN113531478B (en) * 2021-07-19 2022-12-23 东风汽车集团股份有限公司 Hidden car light optical structure and car light thereof

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